There's an out-of-tree kernel module called "omnibook": http://omnibook.sourceforge.net/
It adds lots of cool ACPI stuff for a variety of laptops, including the HP Omnibooks, but also all Toshibas with Phoenix BIOS and HP Pavilions. Check out the site for a full list of supported laptops, but also features (hotkeys, fan control, etc). It'd be nice to at least include the packages found at: http://packages.kirya.net/ -- ACPI support for laptops can be improved https://launchpad.net/bugs/45021 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs